Seeing the enemy appear, the muzzles of the guns on the city wall were also raised, ready to shoot.

Because these artillery pieces of the Qinglong Empire are still very primitive, there is no proximity fuse or anything, and the air defense can only roughly determine the height of some enemy troops according to visual inspection, and then adjust the length of the shell fuse, so that it can explode at a height close to the target.

Just like at this time, one of the officers with the best eyesight, after observing it, roughly determined that the enemy should be above a height of about a thousand meters, and then adjusted the fuse of the shell accordingly.

Then the 100-millimeter heavy guns opened fire on the enemy troops in the sky.

With the roar of artillery, only a very small number of black-winged eagle beasts were shot down, after all, this method of visual altitude measurement is indeed not too accurate, and it is already good to be able to shoot down a few heads like a blind cat touching a dead mouse.

In addition, the huge explosion also frightened these black-winged eagle beasts who had never seen this kind of weapon continuously, and the originally neat formation became scattered in the process of dodging the shelling.

As the flight altitude gradually decreased, the hit rate of the artillery began to increase, and those small-caliber guns also joined the battle, making the interception fire extremely dense.

Under such intensive artillery fire, these black-winged eagles had just been lowered to a height of about 500 meters, and at least more than 2,000 were killed by artillery, and large swaths of black-winged eagle corpses continued to fall from the air like dumplings.

Braving the enemy's bullets, the black-winged eagles also began to counterattack, and many of the defenders also observed that many of the black-winged eagles were holding a stone with their claws, and when they flew over the city wall, they threw the stones at the defenders below.

In addition, there are some knights riding on the backs of black-winged eagles, who are also constantly bending their bows and arrows, shooting arrows downward.

In order to ensure the accuracy of the bombing, some black-winged eagles will continue to drop in height, approaching a height of about 100 meters and throwing stones. Some of the Black-winged Eagle Knights did the same, constantly lowering their mounts' flight altitude and sniping at the defenders on the city walls.

However, the soldiers of the Blue Dragon Empire are not the kind of people who will only be beaten and will not fight back, and the archers and musketeers on the city walls also fired back, using more intensive fire to knock down large areas of black-winged eagles from the air.

The fierce exchange of fire between the two sides caused some of the people who were next to them to be frightened.

Ma 13 is such a folk who has been recruited by the Blue Dragon Empire for a short time, because it is not only the big city of Shark Castle City that needs to be defended, but also more than a dozen other big cities that need to be garrisoned! Therefore, Guo Dafu only had a total of 50,000 regular soldiers left in this city, in order to reduce the workload of some regular soldiers, Guo Dafu temporarily recruited 100,000 people in the city, and took off the equipment of the defenders of the Hanhai Empire who had been eliminated before, and handed them over to these people, and then after some basic training, these people could complete a lot of auxiliary work.

For example, now, with the cooperation of another friend Niu Shiyi, Ma 13 carried a soldier who was injured by a stone onto a stretcher, and then quickly carried the stretcher and trotted away from the extremely dangerous city wall.

Seeing that their air forces had completely attracted the attention of the defenders, the Golden Eagle Empire's side finally sent ground troops.

The ground forces of the Golden Eagle Empire are mainly composed of knights riding primitive eagles.

This primitive eagle is a kind of eagle beast that looks very ancient, its wings are not developed, and it even has two claws that have not degenerated completely, relying on this pair of wings, the primitive eagles can only glide for a short distance at most, and usually rely on two hind legs to run.

And because they often run on their legs, the muscles of the hind legs of these primitive hawks are also extremely developed, and they are so thick that they don't look like the legs of birds. In addition, its tail is longer than that of ordinary birds and beasts, and it has gorgeous tail feathers.

Their main attack is to peck with their sharp beaks, and their powerful hind kicks are not weak. Its adult strength can generally reach about six times the day after tomorrow, and the combat power of the primitive eagle mounts in the regular army of these Golden Eagle Empires is higher, and they basically have the appearance of seven or eight times of cultivation the day after tomorrow, and the strength of the knights on their backs is also similar to them, and the armor on their bodies is all golden yellow, which is in stark contrast to the black armor army of the Blue Dragon Empire.

At this time, tens of thousands of Golden Eagle Imperial cavalry riding primordial eagles were driving wild low-level fierce beasts about ten times their size, rushing towards Shark Fort City like waves.

This is also the most commonly used method of these beast empires, first relying on these few days to refresh a batch of low-level wild beasts to consume the enemy's physical strength and ammunition, and wait until the enemy army is almost consumed before sending out a real elite attack to defeat the enemy in one fell swoop.

According to the Desert Flying Eagle, most of those player forces in the Central Continent were defeated by the other party like this.

The reason why players were able to withstand this kind of offensive of the other party before was because the players had a very powerful logistics base, and they could constantly exchange points for a large number of clone warriors, so the beast sea tactics of the beasts did not work at all.

But later, after the player's logistics base was destroyed, in the face of the enemy's seemingly endless beast sea offensive, they could no longer withstand it, and it was only a matter of time before they were defeated.

Guo Dafu did not dare to be careless in the face of the swarming large number of fierce beasts, and immediately let some heavy artillery on the city wall that could reach the enemy's ground troops open fire.

A large number of fierce beasts and cannon fodder who have never experienced artillery fire, because they were driven away by high-level fierce beasts in the rear when they were advancing, were all crowded together, so they suffered a big loss at once, and every time they went down, they could kill at least dozens of low-level fierce beasts.

And in order to prevent these cannon fodder who were forced to flee, those soldiers of the Golden Eagle Empire did not dare to let them disperse, so they could only continue to drive these guys forward, in their opinion, these 100,000 fierce beasts, no matter how strong the enemy's artillery is, can not kill all, there can always be some who can successfully rush to the city wall.

Driven by the soldiers of the Golden Eagle Empire in the rear, those low-level fierce beasts could only continue to charge with their heads buried in the charge, although they suffered heavy losses from the artillery.

Finally, after paying nearly 20,000 casualties, these fierce beast cannon fodder rushed to the moat of Shark Fort City.

This moat is the original arrogance of Shark Castle City, the introduction is the sea water in the sea not far away, Guo Dafu has led people to dredge and expand it these days, and now its width has reached about twenty meters, most of the fierce beasts can not jump over this distance at once, if you want to cross the river, you have to wait for the bridge to be built.

In the face of the continuous attack of the enemy's artillery fire, the Golden Eagle Empire also immediately took some of the materials it carried with them to the moat, preparing to build several pontoon bridges so that those fierce beasts could cross the river.

As soon as these Golden Eagle Empire soldiers were on the road, they were fiercely attacked by the many archers and musketeers who had been waiting on the city walls for a long time.

This moat is about 100 meters away from the city wall, and at this distance, whether it is a bow or a flintlock gun, it can be very comfortable to output firepower and kill and injure enemy soldiers.

Under the dense rain of arrows and bullets, the soldiers of the Golden Eagle Empire who came to build the pontoon bridge fell in pieces.

But there was no way, they could hide behind those cannon fodder beasts before, but now that building a pontoon bridge is such a complicated thing, those stupid beasts can't do it by themselves, so they can only let them take risks on their own.

After paying the price of more than 5,000 casualties, several pontoon bridges were finally erected, and then a large number of fierce beasts began to quickly approach the city walls through the pontoon bridges.

Among these fierce beasts, most of them are low-level fierce beasts such as steel-toothed rats, but don't look at the strength of these fierce beasts, but the threat to the city wall is not small.

Just like the seemingly harmless steel-toothed rat, relying on its pair of incomparably strong front teeth, it can slowly gnaw at the city wall, and finally bite it down.

So seeing these little things rushing towards the city walls, the defenders of the city immediately threw a batch of grenades.

With a series of violent explosions, the large number of fierce beast cannon fodder that had just approached the city wall were all blown up to a blur of flesh and blood, and they died violently on the spot.

However, there are a large number of cannon fodder for these fierce beasts, and one batch was killed by the explosion, and the next batch immediately continued to rush forward, which made it clear that they would continue to consume the ammunition and physical strength of the defenders in the city.

Guo Dafu quickly saw this, so he quickly stopped his soldiers' extravagant practice of killing these cannon fodder with grenades, and instead asked those people to use a kind of recyclable rolling wood to destroy these enemy cannon fodder.

The recyclable logs are wrapped several times in iron sheets to reinforce them so that they do not crack easily during the fall. Thick iron chains are attached to both ends, and then the people can slowly pull them up again after they are smashed through several special huge winch, and then fall down again, and so on, achieving the purpose of reuse.

This is also Guo Dafu's previous conversation with the Desert Flying Eagle, after knowing that these fierce beast empires like to play this kind of beast sea tactics, some small countermeasures.

Under Guo Dafu's orders, those thick and thick logs with iron sheets on the outside were lowered from the city wall.

After being put down, this heavy rolling log, which weighed tens of thousands of catties, immediately rolled down along the city wall.

Some of the beasts that were climbing up the city wall were the first to be unlucky, and as the heavy rolling logs rolled over them, a few pieces of meat pies that were no longer visible were left on the wall.

Finally, with the muffled sound of tom, these rolling logs finally fell to the ground, and immediately smashed a large number of fierce beasts and cannon fodder who had just rushed under the city wall into meat cakes, and the dark red blood in the bodies of the beasts was squeezed out of these mutilated beast corpses like water juice, and finally slowly merged into small streams, flowing into the moat not far away, dyeing the river water dark red.

Ma 13 and seven or eight other people, after sending the wounded, happened to be called in with a group of companions to take charge of the recyclable rolling log.

They all stayed in the operating rooms made of solid stones, and they couldn't see the bloody scene caused by the rolling log outside, but under the order of an officer of the Blue Dragon Empire, they repeatedly mechanically lowered the rolling wood over and over again, and then turned the heavy winch again and again to put it away.

Under their efficient killing, several people gained a lot of experience points, and the level rose rapidly like a rocket.

This made Ma Thirteen and them feel very strange, and when they took turns to rest in the middle, Ma Thirteen tried to cultivate according to the exercises passed down from above, and quickly controlled the surging power.

In fact, not only have they been promoted a lot, but those regular soldiers who are constantly fighting on the outer city wall have killed more enemies, and their levels have also risen a lot, but because the strength of these soldiers is already not weak, they feel that they are not as obvious as Ma Thirteen.